arch/arm/mach-omap1/board-nokia770.c

   1 /*
   2  * linux/arch/arm/mach-omap1/board-nokia770.c
   3  *
   4  * Modified from board-generic.c
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/input.h>
  15 #include <linux/clk.h>
  16
  17 #include <linux/spi/spi.h>
  18 #include <linux/spi/ads7846.h>
  19 #include <linux/workqueue.h>
  20 #include <linux/delay.h>
  21
  22 #include <asm/hardware.h>
  23 #include <asm/mach-types.h>
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/map.h>
  26
  27 #include <asm/arch/gpio.h>
  28 #include <asm/arch/mux.h>
  29 #include <asm/arch/usb.h>
  30 #include <asm/arch/board.h>
  31 #include <asm/arch/keypad.h>
  32 #include <asm/arch/common.h>
  33 #include <asm/arch/dsp_common.h>
  34 #include <asm/arch/aic23.h>
  35 #include <asm/arch/gpio.h>
  36 #include <asm/arch/omapfb.h>
  37 #include <asm/arch/hwa742.h>
  38 #include <asm/arch/lcd_mipid.h>
  39
  40 #include "../plat-omap/dsp/dsp_common.h"
  41
  42 #define ADS7846_PENDOWN_GPIO    15
  43
  44 static void __init omap_nokia770_init_irq(void)
  45 {
  46         /* On Nokia 770, the SleepX signal is masked with an
  47          * MPUIO line by default.  It has to be unmasked for it
  48          * to become functional */
  49
  50         /* SleepX mask direction */
  51         omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
  52         /* Unmask SleepX signal */
  53         omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
  54
  55         omap1_init_common_hw();
  56         omap_init_irq();
  57 }
  58
  59 static int nokia770_keymap[] = {
  60         KEY(0, 1, GROUP_0 | KEY_UP),
  61         KEY(0, 2, GROUP_1 | KEY_F5),
  62         KEY(1, 0, GROUP_0 | KEY_LEFT),
  63         KEY(1, 1, GROUP_0 | KEY_ENTER),
  64         KEY(1, 2, GROUP_0 | KEY_RIGHT),
  65         KEY(2, 0, GROUP_1 | KEY_ESC),
  66         KEY(2, 1, GROUP_0 | KEY_DOWN),
  67         KEY(2, 2, GROUP_1 | KEY_F4),
  68         KEY(3, 0, GROUP_2 | KEY_F7),
  69         KEY(3, 1, GROUP_2 | KEY_F8),
  70         KEY(3, 2, GROUP_2 | KEY_F6),
  71         0
  72 };
  73
  74 static struct resource nokia770_kp_resources[] = {
  75         [0] = {
  76                 .start  = INT_KEYBOARD,
  77                 .end    = INT_KEYBOARD,
  78                 .flags  = IORESOURCE_IRQ,
  79         },
  80 };
  81
  82 static struct omap_kp_platform_data nokia770_kp_data = {
  83         .rows           = 8,
  84         .cols           = 8,
  85         .keymap         = nokia770_keymap,
  86         .keymapsize     = ARRAY_SIZE(nokia770_keymap),
  87         .delay          = 4,
  88 };
  89
  90 static struct platform_device nokia770_kp_device = {
  91         .name           = "omap-keypad",
  92         .id             = -1,
  93         .dev            = {
  94                 .platform_data = &nokia770_kp_data,
  95         },
  96         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
  97         .resource       = nokia770_kp_resources,
  98 };
  99
 100 static struct platform_device *nokia770_devices[] __initdata = {
 101         &nokia770_kp_device,
 102 };
 103
 104 static void mipid_shutdown(struct mipid_platform_data *pdata)
 105 {
 106         if (pdata->nreset_gpio != -1) {
 107                 printk(KERN_INFO "shutdown LCD\n");
 108                 omap_set_gpio_dataout(pdata->nreset_gpio, 0);
 109                 msleep(120);
 110         }
 111 }
 112
 113 static struct mipid_platform_data nokia770_mipid_platform_data = {
 114         .shutdown = mipid_shutdown,
 115 };
 116
 117 static void mipid_dev_init(void)
 118 {
 119         const struct omap_lcd_config *conf;
 120
 121         conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
 122         if (conf != NULL) {
 123                 nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
 124                 nokia770_mipid_platform_data.data_lines = conf->data_lines;
 125         }
 126 }
 127
 128 static void ads7846_dev_init(void)
 129 {
 130         if (omap_request_gpio(ADS7846_PENDOWN_GPIO) < 0)
 131                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
 132 }
 133
 134 static int ads7846_get_pendown_state(void)
 135 {
 136         return !omap_get_gpio_datain(ADS7846_PENDOWN_GPIO);
 137 }
 138
 139 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
 140         .x_max          = 0x0fff,
 141         .y_max          = 0x0fff,
 142         .x_plate_ohms   = 180,
 143         .pressure_max   = 255,
 144         .debounce_max   = 10,
 145         .debounce_tol   = 3,
 146         .debounce_rep   = 1,
 147         .get_pendown_state      = ads7846_get_pendown_state,
 148 };
 149
 150 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
 151         [0] = {
 152                 .modalias       = "lcd_mipid",
 153                 .bus_num        = 2,
 154                 .chip_select    = 3,
 155                 .max_speed_hz   = 12000000,
 156                 .platform_data  = &nokia770_mipid_platform_data,
 157         },
 158         [1] = {
 159                 .modalias       = "ads7846",
 160                 .bus_num        = 2,
 161                 .chip_select    = 0,
 162                 .max_speed_hz   = 2500000,
 163                 .irq            = OMAP_GPIO_IRQ(15),
 164                 .platform_data  = &nokia770_ads7846_platform_data,
 165         },
 166 };
 167
 168 static struct {
 169         struct clk *sys_ck;
 170 } hwa742;
 171
 172 static int hwa742_get_clocks(void)
 173 {
 174         hwa742.sys_ck = clk_get(NULL, "bclk");
 175         if (IS_ERR(hwa742.sys_ck)) {
 176                 printk(KERN_ERR "can't get HWA742 clock\n");
 177                 return PTR_ERR(hwa742.sys_ck);
 178         }
 179         return 0;
 180 }
 181
 182 static unsigned long hwa742_get_clock_rate(struct device *dev)
 183 {
 184         return clk_get_rate(hwa742.sys_ck);
 185 }
 186
 187 static void hwa742_power_up(struct device *dev)
 188 {
 189         clk_enable(hwa742.sys_ck);
 190 }
 191
 192 static void hwa742_power_down(struct device *dev)
 193 {
 194         clk_disable(hwa742.sys_ck);
 195 }
 196
 197 static struct hwa742_platform_data nokia770_hwa742_platform_data = {
 198         .get_clock_rate = hwa742_get_clock_rate,
 199         .power_up       = hwa742_power_up,
 200         .power_down     = hwa742_power_down,
 201         .te_connected   = 1,
 202 };
 203
 204 static void hwa742_dev_init(void)
 205 {
 206         hwa742_get_clocks();
 207         omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
 208 }
 209
 210 /* assume no Mini-AB port */
 211
 212 static struct omap_usb_config nokia770_usb_config __initdata = {
 213         .otg            = 1,
 214         .register_host  = 1,
 215         .register_dev   = 1,
 216         .hmc_mode       = 16,
 217         .pins[0]        = 6,
 218 };
 219
 220 static struct omap_mmc_config nokia770_mmc_config __initdata = {
 221         .mmc[0] = {
 222                 .enabled        = 0,
 223                 .wire4          = 0,
 224                 .wp_pin         = -1,
 225                 .power_pin      = -1,
 226                 .switch_pin     = -1,
 227         },
 228         .mmc[1] = {
 229                 .enabled        = 0,
 230                 .wire4          = 0,
 231                 .wp_pin         = -1,
 232                 .power_pin      = -1,
 233                 .switch_pin     = -1,
 234         },
 235 };
 236
 237 static struct omap_board_config_kernel nokia770_config[] __initdata = {
 238         { OMAP_TAG_USB,         NULL },
 239         { OMAP_TAG_MMC,         &nokia770_mmc_config },
 240 };
 241
 242 #if     defined(CONFIG_OMAP_DSP)
 243 /*
 244  * audio power control
 245  */
 246 #define HEADPHONE_GPIO          14
 247 #define AMPLIFIER_CTRL_GPIO     58
 248
 249 static struct clk *dspxor_ck;
 250 static DECLARE_MUTEX(audio_pwr_sem);
 251 /*
 252  * audio_pwr_state
 253  * +--+-------------------------+---------------------------------------+
 254  * |-1|down                     |power-up request -> 0                  |
 255  * +--+-------------------------+---------------------------------------+
 256  * | 0|up                       |power-down(1) request -> 1             |
 257  * |  |                         |power-down(2) request -> (ignore)      |
 258  * +--+-------------------------+---------------------------------------+
 259  * | 1|up,                      |power-up request -> 0                  |
 260  * |  |received down(1) request |power-down(2) request -> -1            |
 261  * +--+-------------------------+---------------------------------------+
 262  */
 263 static int audio_pwr_state = -1;
 264
 265 /*
 266  * audio_pwr_up / down should be called under audio_pwr_sem
 267  */
 268 static void nokia770_audio_pwr_up(void)
 269 {
 270         clk_enable(dspxor_ck);
 271
 272         /* Turn on codec */
 273         aic23_power_up();
 274
 275         if (omap_get_gpio_datain(HEADPHONE_GPIO))
 276                 /* HP not connected, turn on amplifier */
 277                 omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 1);
 278         else
 279                 /* HP connected, do not turn on amplifier */
 280                 printk("HP connected\n");
 281 }
 282
 283 static void codec_delayed_power_down(struct work_struct *work)
 284 {
 285         down(&audio_pwr_sem);
 286         if (audio_pwr_state == -1)
 287                 aic23_power_down();
 288         clk_disable(dspxor_ck);
 289         up(&audio_pwr_sem);
 290 }
 291
 292 static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);
 293
 294 static void nokia770_audio_pwr_down(void)
 295 {
 296         /* Turn off amplifier */
 297         omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 0);
 298
 299         /* Turn off codec: schedule delayed work */
 300         schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */
 301 }
 302
 303 static int
 304 nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
 305 {
 306         down(&audio_pwr_sem);
 307         if (audio_pwr_state == -1)
 308                 nokia770_audio_pwr_up();
 309         /* force audio_pwr_state = 0, even if it was 1. */
 310         audio_pwr_state = 0;
 311         up(&audio_pwr_sem);
 312         return 0;
 313 }
 314
 315 static int
 316 nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
 317 {
 318         down(&audio_pwr_sem);
 319         switch (stage) {
 320         case 1:
 321                 if (audio_pwr_state == 0)
 322                         audio_pwr_state = 1;
 323                 break;
 324         case 2:
 325                 if (audio_pwr_state == 1) {
 326                         nokia770_audio_pwr_down();
 327                         audio_pwr_state = -1;
 328                 }
 329                 break;
 330         }
 331         up(&audio_pwr_sem);
 332         return 0;
 333 }
 334
 335 static struct dsp_kfunc_device nokia770_audio_device = {
 336         .name    = "audio",
 337         .type    = DSP_KFUNC_DEV_TYPE_AUDIO,
 338         .enable  = nokia770_audio_pwr_up_request,
 339         .disable = nokia770_audio_pwr_down_request,
 340 };
 341
 342 static __init int omap_dsp_init(void)
 343 {
 344         int ret;
 345
 346         dspxor_ck = clk_get(0, "dspxor_ck");
 347         if (IS_ERR(dspxor_ck)) {
 348                 printk(KERN_ERR "couldn't acquire dspxor_ck\n");
 349                 return PTR_ERR(dspxor_ck);
 350         }
 351
 352         ret = dsp_kfunc_device_register(&nokia770_audio_device);
 353         if (ret) {
 354                 printk(KERN_ERR
 355                        "KFUNC device registration faild: %s\n",
 356                        nokia770_audio_device.name);
 357                 goto out;
 358         }
 359         return 0;
 360  out:
 361         return ret;
 362 }
 363 #endif  /* CONFIG_OMAP_DSP */
 364
 365 static void __init omap_nokia770_init(void)
 366 {
 367         nokia770_config[0].data = &nokia770_usb_config;
 368
 369         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
 370         spi_register_board_info(nokia770_spi_board_info,
 371                                 ARRAY_SIZE(nokia770_spi_board_info));
 372         omap_board_config = nokia770_config;
 373         omap_board_config_size = ARRAY_SIZE(nokia770_config);
 374         omap_gpio_init();
 375         omap_serial_init();
 376         omap_register_i2c_bus(1, 100, NULL, 0);
 377         omap_dsp_init();
 378         hwa742_dev_init();
 379         ads7846_dev_init();
 380         mipid_dev_init();
 381 }
 382
 383 static void __init omap_nokia770_map_io(void)
 384 {
 385         omap1_map_common_io();
 386 }
 387
 388 MACHINE_START(NOKIA770, "Nokia 770")
 389         .phys_io        = 0xfff00000,
 390         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 391         .boot_params    = 0x10000100,
 392         .map_io         = omap_nokia770_map_io,
 393         .init_irq       = omap_nokia770_init_irq,
 394         .init_machine   = omap_nokia770_init,
 395         .timer          = &omap_timer,
 396 MACHINE_END